Coke-oven apparatus.



4 SHEETS-SHHET 1.

N w \N \N PATENTED JUNE 30, 1908. T. J. MITCHELL & J. A. MOGRBARY.

00KB OVEN APPARATUS.

APPLIOATION F ILED JAN. 30. 1908.

Wifnzooeo v No. 891,850. PATENTED JUNE 30, 1908.

wamwm v I I T. J. MITCHELL & J. A. MoCREARY.

001KB OVEN APPARATUS.

APPLIOAT ON I" ED .1

I IL JAN 30 4 SHEETS-SHEET 2.

' @vwanliou! I PA'I'ENTED JUNE 30, '1908.

W. 4 y J m w H mm 1W J Am i m Q T. 0 w n No. 891,850. PATENTED JUNE 30,1908.

T. J. MITCHELL & J. A. MOGREARY.

COKE OVEN APPARATUS. A IIIIIIIIIIIIIIII AN. 00000 a.

4 SHEETS-SHEET 4.

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COKE-OVEN APPARATUS.

Specification of Letters Patent.

Patented June 30, 1908.

Application filed January 30, 1998. Serial No. 413,484.

To all whom it may concern:

Be it known that we, 'luoMAs J MrrcnELL and JAMES A. MlCCREARY, citizens of the Apparatus, of which the following is a specification.

This invention has reference to improve-.

ments in means or apparatus for use in connection with coke ovens, and its object is to provide a means for the removal of the coked material from the oven after the coking'oporation has been completed.

The invention comprises a suitable track carrying means whereby the truck is made self moving and the same prime mover which imparts motion to the truck is utilized for the purpose of operating the ram or pushingapparatus by means of which the coke'is pushed as a body out of the coking oven.

The invention also comprises a telescopic structure, one member of which carries a pushing head and mechanism whereby the I in'gs.

several telescopic members, which are projected in regular order, are coupled together for unit movement and are then withdrawn and uncoupled in the reverse order.

The invention willobe bestunderstood 0n reference to the following detailed description, taken in connection with the accompanying drawings forminga part of this speci- 'Iication, in which drawings Figure 1 is a plan view of the truck and pushing mechanism or ram carried thereby, said ram being in the retracted position. Fig. 2 is an end elevation .of the structure shown in Fig. 1. Fig. 3 is a longitudinal section on a larger scale than shown in Figs. 1 and 2, of the telescoping members at a point coincident with the latch. Fig. 4 is a similar section to that shown in Fig. 3, but with certain of the telescopic members in a different phase of operation. Figs. 5 and 6 are perspective views of details of the latch mechanism. Fig. 7 is across section of the telescoping mei'nbers at the point adjacent to the propelling pinioa mid Fig. 8 is a bottom plan view ofthe rack bars/ Similar numerals of reference are em-' ployed to indicate corresponding throughout the severalfigures of the (parts raw- Illeferring to the drawings, there is shown in Figs. 1 and 2, a rectangular frame 1, which may be made of I-beams, suitably riveted together, and this frame is mounted upon axles '2 through the intermediary of suitable journal boxes 3. Upon the axles between the journal boxes, are mounted truck wheels 4+5, the wheel 4 being provided with flanges on each side to embrace a track rail 6, while the wheel 5 may have a flange on the inner face only.

The track rails 6 are usually laid between two series of coke ovens which, in Fig. 2, are indicated conventionally at 7 and 8, and the framework 1 overhangs the track for the purpose of providing a broad support for the several parts carried thereby.

Mount'ed upon the truck near one corner thereof is an electric motor 9 which may be of any suitable type and receives current from a suitable trolley wire, not shown, through a trolley pole 10 of any suitable construction.

The armature shaft. 11 of the motor carries a pinion 12, meshing with a gear wheel 13 upon another shaft 14 extending lengthwise of the truck, and is supported thereon by suitable journal boxes 15. At the end remote from the motor 9, the shaft 14 carries two pinions 16 and 17 spaced one from theother. The pinion 16 is considerably smaller than the pinion 17 for a purpose which will presently appear. The pinion 16 is in mesh with a gear wheel 18 upon a counter-shaft 19 below and to one side of the shaft 14, and suit-' ably mounted in journal bearings 20 in the truck frame. The gear wheel 18 is loosely mounted upon the shaft 19. and may be coupled thereto 'at will by means of a clutch 21 under the control of a suitable handle 22. This clutch is not shown in detail, but is only conventionally indicatedsince it may be of any suitable type. The pinion 17 is in mesh with another pinion 23 upon the shaft 19, but is loosely mounted thereon to be coupled thereto through another clutch 24 like the clutch 21, and, also, under the control of the handle 22.

The frame 1 has intermediate cross girders across 0 space oc'cupied by the girders 25;

' handle 22, and connectedto the clutch 37" and at the end remote from the gear wheel 27 carries a pinion 30 Which inturn is in mesh with a gear wheel 31 on the shaft 32, having journal bearings 33 on the irders 25, and between these irders the sha t 32 carries a wide pinion 34, t e purpose of which will presently appea l I Adjacent to the shaft 14 on the side thereof remote from the shaft 19 is another counter.

shaft 35, carrying a gear'wheel 36, in mesh with the pinion 16 before referred to.- The shaft 35 is suitably journaled on the framework of the truck, as indicated at 37. The gear wheel 36 is not fast upon the shaft .35, but is coupled thereto by means of a clutch 37 under the control of a handle 38 locatedv within convenient distance of the clutch through bell crank levers 39 and a connecting link 40. r- 1 The shaft 35 has fast, thereon, "a bevel 1 pinion 41 engaging another bevel pinion 42 I upon an upright shaft 43, and this last named shaft carries still another bevel" pinion, not shown, in mesh with still another bevel pinion 44 upon a short counter-shaft 45, the latter carrying a straight pinion 46 meshing with a gear wheel 47 upon corresponding axle 2. Nowjlet it be assumed that the motor 9 has started, say through the intermediary of a controller 48, located adjacent to the operating lever 22 and handle 38, then motion is imparted by said motor to theshaft 14, and to the pinions 16 and 17. This motion is,

also, -transmitted to the gear wheels 18, 23' and 36, but assuming that the clutches are is desired to reverse the direction of travel of the truck, )then the'direction of rotation of the armature of the motor 9 is reversed. The

rate of reduction between the mot6r and the car'wheels issuch that the truck is moved at.

a very moderate speed, while the motorruns at a comparatively high speed, which-latter is necessary forthe economical running of.

themotor. v v

When it is" desired to impart rotative movement to the pinion v34.2,for purposes which will hereinafter appear, f then the clutch 21 is put'into active operation,-thus coupling the gear wheel "18 to the shaft 19. Now, however, the motion of the shaft 14 .is transmitted at a pro essive reduction of speed through the sha t 19, pinion 26, gear wheel 27, shaft 28, pinion 30 and gear wheel 31, so that the speed of the shaft 32 carrying the pinion 34 is comparatively slow since the parts to be moved are ponderous and large .power with slow movement is permissible.

Assuming that the movement imparted to the pinion 34 was such as to cause the forward or operative movement of the parts controlled by said pinion, and that in this forward movement the work .is to be performed while the return movement is to transpire without load, then the return movement maybe more .rapidthan the forward movement for far less power is required. For this purpose, the direction of rotation of the motor armature is reversed-and the gear wheel '23 is clutched to the shaft gear ..17 may for this purpose be made .as

large as or lar er than the gear wheel 23, and

considerably arger than the pinion 16, so

that the return movement may be more rapid than the forward movement.

Mounted upon the frame 1- in line v s zith, and above the girders 25', are two spacedchannel beams 48, connected at their topsby a cap plate 49. These channel beams are somewhat longer than thedistance between;

the sides of the truck and project over one of theside members for a short distance, and .thecap plate 49 isas. long as the channel beams.

Carried on the inner faces ofeach channel beam 48 are a number of flanged rollers 50,

each carried by a short axle 51, and spaced from the channel beam by a washer '52. The

axle extends through the channel beam and is there threaded, as indicated at 53, to receive a nut 54, there being a washer 55 interposed between the nut and the outer face of the corresponding channel beam. There are as many of these rollersas are necessary, and carried by them ,is a member 56 of telesmnring structure, this member being made up'ofj sides composed of channel beams 57 having thelr flangesembracmg the perlpherles of the rollers 50, and supported by the engagement 'of these rollers,wi th the upper flange of the channel beams, andthc said channel beams are connected a top plate 58.

The chan' nel beams 57 are previdcd with rollers 59- mounted in the channel beams 57, like thew rollers 50 in the channel beams 48 Y Su ported .by the rollers 59 is a second mem er 60 of the telescoping structure,- and .this member has sidesformed of I-beams 61 connected by a cap plate 62 .but'the I-bams carry no rollers. The outer-flanges of the -I-beams embrace the rollers'59 and are sup ported thereby; and th einner'flanges of the I-beams receive similar rollers 63 journaled on axles 64,. like the axles 51, and these said axles are carried by twospaced "channel beamsv 6-5-con'ne'cted at the top bya plate66 and at the bottom by another plate 67.

There is thus formed a telescoping structure the latter. ward movement of the several members ot t-opi 'iosed of three members, each supported on the next outer one by roller bearings, and

the outermost one being supported by roller bearings in a fixed housing composed of the channel beams 48 and cap plate 49.

The members of the telescoping structure are of sullicient length so that when retracted they are allsubstantially contained within the fixed housing, and when projected they have a su'llicient length to more thanextend through a coke oven with which the structure is designed to operate.

The plate 67 is 't'ormed on its lower face with gear teeth 68 to constitute a longitudinal rack. rack bar 69 flanking the rack 68 and extending longitudinally with relation to said I-beams. On the lower edge of each channel beam 57 there is another racltbar 7O flanking the rack bars 69 immediately adj acent thereto.

hen the several members of the teleonly the central member has therack bar in engagement withthc teeth of the pinion 34,

and the structure is such, as will presently appear, that when the central member has been projected by the pinion until in a posi tion-about to escape irom said pinion, the

next outer memberis coupled to the first member andis moved by t 1c same into engagement with the pinion, and is itself projected', carrying the first named member with it, and when the second named member has about reached the outer limit of its travel under ,the direct impulse of the pinion, ti. en the third member is coupled to the second member and brought into mesh with the pinion to be in turn nrojected by the pinion after the second member'has escaped from Thus there is a' progressive outthe telescoping structure, and when the parts are reversed the retraction takes place in like manner, but in reverse order.

Near that end of the housinglor the telescoping structure from which ,the telcscoping members are projected, secured a bracket 7l fast on the top plate 49, and this bracket is immei'liately above an opening 72 in said topplate. The bracket 71 carries and guides a stem 73 terminating in a latch head 74 ol rectangular shape projecting downeurdly. through the opening 72 and Fast to each I-beam 61 is a' spective telescopic members, and the front edge of each opening is reinforced by plates 79 fast on both the top and bottom faces of the top plates 58 and 62. When the head 7 4 is inposition to be projected through the openings 7 5 and 76, however, downward movement is prevented by a shoulder coming in contact with the to plate 49.

Secured to the under side of the top plate 66 of the innermost telesco ic member at its rear end is a strong brac et 80 having a through perforation in which is seated a rectangular pin 81, the upper end of which latter normally engages the under side of the top late 62 of the intermediate telescopic mem 01, and one edge of this pin, at its upper end, is slightly rounded, as indicated. Near the lower end of the pin 81 is formed a flange 82, which, by engagement with the 'lower end of the bracket 80, serves to limit the upward movement of the said pin 8]. Below the flange 82 the pin is reduced in diameter to form a tongue 83 through wl'iich there is a perforation 84 for the passage of a pin 85. The tongue 83 is seated between two spaced parallel cars 86 on one end of a rock lever 87, and these cars have elongated.

perforations S8 for the pin 85. The rock lever 87 has formed on it, near its upper edge, about mid-.way of its length, two laterally oppositely extending bosses S9 of such length asto reach the side beams 65 of the inner most telescopic member, and the lever is secured to these side beams by a pin 90. (.otter pins 91 are used to maintain the pin 85 in place, and similar means may be used for maintaining the pin 90 in place.

The end of the lever 87 remote from the cars 88 is formed with a ledge 92, from which there projects upwardly a stud 93, receiving the lower end ola helical spring 94, the upper end of which is received on another stud 95 on a bracket 96 secured to the inner telescopic member. Formed on the stud 95 there is a pin 97 extending through the spring 94 into the path of the stud 93, and this pin serves to limit the movement of the lever 87 about the pivot pin 90 in a direction to bring the stud 93 toward the stud 95. The action of the spring 94, however, is to force the lever 87 about its pivot in a direction to move the stud 93 away from the stud 95,and thereby cause the )in S1 to move u wardly through the braclret 80. Normally the upward movement of the pin 81 is arrested by engagement with the under side of .the late 62. The intermediate telescopic mem her is, also, provided nearits rear end with a similar structure to that just described, and it is unnecessary to repeat this description, since the parts are identical, except that-the in corres onding to the pin 81 is somewhat l dn er and for the convenience of the following escription, this pin is designated by the reference numeral 98, in order that this pin may be differentiated from the pin 81, and the lever controlling this pin is ingboth as wearing plates and preventing the edges of the head or ram from catching in projections or irregularities of the floor or side walis of the oven, and so causinginjury.

Onthe rear end of the housing of the telescoping members is a buffer head 102 formed on a body portion 103'capable of movement and adjustment between two guides 104 fast on the top plate 49. This bufier is so .located as to be'readily made to engage the walls of the series of ovens 8 when the ram or pushing head 100 is being moved into the ovens of the series 7.

N ow, let it be assumed that the parts are in the position shown inv Fig. 3, that is, the innermost telescopic member is being projcctcd and the inner end. is approaching the pinion 34. Ultimately the pin .81 engages the beveled face 77 of the pin 74 and raises the same against the action of the spring 78 'si'ifiicientlv to unlock the second section and thereby allow it to be moved forward, the beveled face 77 by this outward movement entirely freeing thepin 74 from its slot 76.

. When the intermediate section is released by this raising of the bolt 74, the pin or bolt 81 comes in contact, with the reinforcement 79 on the under side of the next outer section and moves the outer section forward until the rack 69 comes in gear with the pinion 34, and at the same time the rocking lever 87 comes in contact with the periphery of the pinion 34 and thereby forces the pin '81 through theopening 76 by which means the two sections are firmly locked together, the

spring 94 holding this bolt 81 in place when forced there by the action of the rocking lever87. Now, the'inner telescopic member and the intermediate telescopic member are coupled together and as soon as this has been done; the pinion leaves the teeth 68 and both members are )rojected by the engagement of thepinion with the rack bars 69, The lever-'87 in this position has the end under the control of the spring 94 now forced down through the slot- 105 to a distance about equal to the depth of the teeth 68. The second section is provided with a locking device similarly located near the rear end similar to the first one and arranged to operate in the same manner. As it approac ms and comes into contact with the pinion 34, looking this sec end section firmly to the next outer or third .eaoh case.-

4 The forwarder outward movement of the, ram or pushing head has caused the latter to enter a' coke oven opening, and to push the coked charge'out through the other end of, the oven, w

terial is pushed out as a'whole, thus preserving it in large sections. mechanism, the outermost section is retracted until ultimately the head 74 is coincident with'the opening now occupied by the pin 98 ,and when this position is'reached, the pinion 34 engages that end of the lever 99 directly under the spring ,94 and forces the same upward against the action of said spring, thus drawing the pin 98 out ofthe opening 75 and permitting-the head 74 to drop intosaid opening under the action of the spring 78, amtil. this head engages the upper face of the late 62. -This action iich latter is of a type permitting this operation, and the mass of coked ma- On reversing the takes place-practica coincident with the passing of the rack bars 70 from en agement with-the pinion 34, or more propcrliv, imme diately after, and the beveled face 77 of the head 74 will then ride down the 'rear edge of the opening 75 and ultimately seat itself as described, and thus lock the outermost telescoping member from further retr'active movement. Now, the rack bars 69 of the intermediatemember have by this time come intoengagenient with the pinion 34; and the retractivemovement of the intermediate member'is continued 11 til the pin 8] is brought intocoincidence with the head 74,

and. this pin is withdrawn by the engagement.

of the pinion 34 with that portion of the lever 87 then in the path of the pinion 34 in the manner before described with reference to the lever 99, and so the intermediate section is locked against further retractive movement just after the rack bars 69 have escaped from the pinions 34. The innermost member, however, has its teeth 68 in engagement with the pinion 34, and its retractive movement continues until the innermost member is housed to the extent desired, when the clutch 24 which, as before described, is used for the retractive movement, is disengaged, or the motor 9' is stopped] Should there, however, be a lack of strict coordination of the parts, due to wear or the want of good lit, or from some other cause, the rounded edges of the pins 81 and 98 will cause these pins to ride under the respective plates through which they project after; either one of the pins has been sufliciently retracted to bring the rounded edge into engagement with the rear wall of the respective openings 75 or 76.

The ram or pushin head 100 is located some little distance a ove the tracks, anda flange 108; This roller 107 is journaled on a vertical axis, so that it lies horizontally, and is so arranged that the tread of the roller bears against'thc side of the crown ofthe rail with the flange 108 engaging underneath said rail crown. Any tendency of this end of the truck to rise over the tracks is thus resisted by the flanged roller 107.

We claim 1. In a coke oven apparatus, telescoping members adapted to be projected into a coke oven, a latch member carried upon a fixed portion of the structure in operative relation to one of the telescoping members, and a locking member carried by another telescoping member and arranged to engage and move the latch out of engagement with the first named telescoping member and at the same time lock the second named telescoping member to the first named member.

2. In a coke oven apparatus, telescoping members adapted to be projected. into a coke oven, a spring actuated latch member carried upon a lixed portion of the structure in operative relation to one or more of the tele scoping members, and a locking member carried by another telescoping member and arranged to engage and move the latch out of engagement with the first named telescoping member, and at the same time lock the second named telescoping member to the first named member.

3. In a coke oven apparatus, telescoping members adapted to be projected into a coke oven, a spring actuated latch member carried upon a fixed portion of the structure in operative relation to one or more of the tele scoping members, and a locking member carried by another telescoping member and arranged to engage the latch member, said locking member being actuated by a lever and arranged to move the latch member out of engagement with the first named tele scoping member and to itself move into looking engagement with the second named telescoping member against the tendency of the spring actuated latch.

4. In a coke oven apparatus, a telescoping structure consisting of a number of members adapted to be projected into a coke oven, one member telescop ng into the next larger member, racks on the telescoping members,'

and a driving pinion for said racks, a fixed structure into which the telescoping members are movable, a spring actuated latch carried by the fixed member, a locking member carried by each of the telescoping members, except the outermost one, said locking member first raising and releasing the latch. and releasing the next outer member and also looking the said next outer member to itself, and a rock lever coming in contact with the periphery of'the driving pinion, thereby forcing the locking bolt to place, when the relatively inner telescoping member is at the limit of its projected position.

5. In a coke oven apparatus, telescoping members and moans lor coupling and un coupling the telescoping members, comprising a spring actuated latch member in the path of a relatively outer telescoping member and arranged to project theretln'ough and into the path of another telescoping member, and a lever actuated lock pin carried by the second telescoping member into engagement with the latch, said lock pin raising the latter out of engagement with the first named telescoping member when coincident therewith, and moving into locking engage ment with the said first named telescoping member.

6. In a coke oven apparatus, telescoping members adapted to be projected into a coke oven, rack and pinion actuating means For the telescoping members, a latch member carried upon a fixed portion of the structure in operative relation to a relative outer one 95 of the telescoping members, and a locking member carried by a relatively inner one of the telescoping members, said locking member comprising a longitudinally movable pin, and a lever connected to said pin and movable into the path of the pinion engaging the rack moving the said telescoping member.

7. In a coke oven apparatus, telescoping members adapted to be projected into a coke oven, rack and pinion actuating means for the telescoping members, a latch. member carried upon a fixed portion of the structure in operative relation to a relatively outer one of the telescoping members, and a locking member carried by a relatively inner one of the telescoping members, said locking momber comprising a longitudinally movable pin,

a leverconnected to said pin and movable into the path of the pinion engaging the rack moving the said telescoping member, and a spring tending to move the lever in a directron to roject the pin into engagement with the sai other telescoping member.

8. In a coke oven apparatus a series of means for the telescoping members and so as our own, We have hereto affixed our signaarranged as 'to force the bolt mto loc-kmg turesln the presence of two wltx'lesses.

position as it passes ovei' said driving means THOMAS J. MITCHELL. and unlock the same by Withdrawing the JAMES A. MOCREARY. 5 bolt from the next outer section onit's r.e- Witnesses:

' turn. CHARLES T. CRAMER,.

In testimony that vwe claim the foregoing JAMES M. SMITH. 

